Apple CEO Steve Jobs poses with the new iPhone 4 during the Apple Worldwide Developers Conference in San Francisco. The new features are quite impressive as Apple builds upon the momentum from the iPad.

Meanwhile, many app developers are worried as AT&T will no longer be offering unlimited data plans. I can see the concern, as users don’t want to worry about what they are consuming. The beauty of many apps is that they are free, or they are so cheap that the decision to purchase is insignificant. This may upset the balance, no matter how good the iPhone gets.